How long will it take you to ski a distance of 36 miles at a speed of 3 miles per 30 minutes

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)

the answer is d

for problems like this theres an app, its photomath that explains the problem and gives the answer hope i

6 adults and 9 children went.

a + c = 15

12a + 9c = 153

12(6) + 9(9) = 153

72 + 81 = 153